Bently Nevada

Bently Nevada 330881-16-00-307-06-02 PROXPAC XL Proximity Transducer

SKU 330881-16-00-307-06-02

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Bently Nevada

  • Product No.: 330881-16-00-307-06-02

  • Country of origin:United States

  • Product Type: Proximity Transducers

  • Barcode: 8537101190

  • Payment: T/T, Western Union

  • Weight: 1400g

  • Dimensions: 30.02cm x 12cm x 9.14cm

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

Designed for advanced shaft vibration and axial position monitoring in critical rotating machinery, the Bently Nevada 330881-16-00-307-06-02 integrates a proximity probe and a Proximitor sensor into a single, robust, field-mountable assembly. This PROXPAC XL configuration simplifies installation by eliminating the need for separate extension cables and external sensor housings, providing direct-to-controller signal transmission. Engineered for harsh industrial environments, the assembly offers superior resistance to moisture, chemical exposure, and mechanical stress, ensuring continuous and highly accurate displacement measurements for steam turbines, gas turbines, compressors, and large pumps.

Features

  • Integrated Assembly: Combines the proximity probe and the Proximitor sensor within a single protective housing to minimize field wiring complexity.
  • High-Precision Measurement: Delivers non-contact, continuous static and dynamic displacement readings of rotating shafts.
  • Enhanced Environmental Protection: Rugged housing protects internal electronics from moisture ingress, corrosive atmospheres, and mechanical impacts.
  • Broad Compatibility: Fully compatible with Bently Nevada 3500 and 3300 monitoring systems for seamless diagnostic integration.
  • Mechanical Integrity: Heavy-duty threaded configuration ensures secure, vibration-resistant mounting directly on machine casings.

Applications

  • Radial vibration and axial thrust position tracking in utility steam turbines.
  • Critical shaft displacement monitoring in high-pressure centrifugal compressors.
  • Bearing oil film clearance and shaft keyphasor measurements in industrial generators.
  • Structural vibration and casing expansion monitoring in heavy industrial machinery.

Technical Specifications

Parameter Specification
Manufacturer Bently Nevada (Baker Hughes)
Model Series PROXPAC XL (330881 Series)
Transducer Type Integrated Proximity Transducer Assembly
Target Calibration AISI 4140 Steel (Standard)
Nominal Scale Factor -7.87 V/mm (-200 mV/mil) typically
Linear Range 2.0 mm (80 mils) standard
Operating Temperature Range Probe: -51 degC to +177 degC; Housing Assembly: -35 degC to +85 degC
Country of Origin United States

Empirical Engineering Insights

Alternative Models & Compatibility

The PROXPAC XL series functions as an all-in-one replacement for discrete 3300 XL 8mm probes, matching their performance but integrating the sensor electronics into the junction box. When upgrading from older non-XL PROXPAC variants, ensure your field monitor configuration is updated to handle the electrical specifications of the 3300 XL series to avoid scale factor discrepancies.

Application Pitfalls & Engineering Notes

Target material selection is critical. This transducer is calibrated for AISI 4140 steel. Operating the sensor against other metals (such as stainless steel or chrome-plated surfaces) without recalibration will cause severe measurement errors and non-linear outputs. Additionally, ensure that the ambient temperature inside the junction enclosure does not exceed +85 degC during peak machine operation.

Commissioning & Wiring Tips

Always use high-quality, double-shielded twisted-pair cable for the field wiring from the PROXPAC terminal block to the monitor cabinet. The shield must be grounded at the monitor end only. Grounding the shield at both ends introduces ground loops that corrupt the high-frequency proximity signals with electrical noise.

Installation Guidelines

CRITICAL WARNING: Ensure the machinery is fully shut down and de-energized before beginning installation or adjustment of the PROXPAC transducer. High-voltage transients or accidental machinery startup during probe gapping poses extreme hazards to personnel and equipment.
1

Mount the PROXPAC XL housing securely to the machine casing, ensuring proper alignment with the target observation shaft.

2

Route field cables through the designated conduit entries on the housing using liquid-tight glands to protect against moisture.

3

Terminate field wiring inside the housing junction box. Ensure all terminal connections are tightened to specification to prevent signal attenuation.

4

Verify probe gapping voltage using a digital multimeter at the monitoring terminal prior to commissioning the machine.

FAQ

What is the primary advantage of the PROXPAC XL integrated assembly design?

The PROXPAC XL design houses the proximity probe and the Proximitor sensor in a single, robust, field-mountable junction box, reducing installation time and providing superior environmental protection.

Which materials is the 330881 transducer calibrated for as standard?

The transducer is calibrated for AISI 4140 steel as standard. Other target metals require custom calibration or compensation factors within the monitoring system.

Can this proximity transducer be connected directly to any control system?

It is designed to interface with Bently Nevada monitoring systems, such as the 3500 series, which provide the required excitation voltage and signal processing.

What are the grounding requirements for the cabling on this device?

Field wiring shields should be connected to the system ground at the monitor end only to prevent ground loops that cause noise on the output signal.

View all FAQs →

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Technical Datasheet

Bently Nevada 330881-16-00-307-06-02 PROXPAC XL Proximity Transducer

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Shipping & Returns

Global Express Shipping

  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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